A mobile terminal includes a first controller controlling an overall operation of the mobile terminal, a memory storing data including first data, an interface connecting with an external terminal, a second controller performing synchronization between the first data previously stored in the memory and second data stored in the external terminal in response to a synchronization request received from the external terminal, and a wireless communication unit configured to receive a call signal. The second controller performs the synchronization as a background process and the first controller processes the call signal upon receiving the call signal while the synchronization is performed as the background process.